Bull-wheel for drilling apparatus.



C. S. WRIGHT.

BULL WHEEL FOR DRILLING APPARATUS. APPLICATION FILED MAY2L1915.

Patented Feb. 1, 1916.

2 SHEETS-SHEET I.

ATTORNEY C. S. WRIGHT.

BULL WHEEL FOR DRILLING APPARATUS.

APPLICATION FILED MAY 21. 1915;

Patented Feb. 1, 1916.

2 SHEETS-SHEET 2 INVENTOR.

ATTORNEI WITN ESS. W

UNITED s ATES CLYDE S. WRIGHT, TOLEDO, OHIO, ASSIGNOR TO THE NATIONAL SUPPLY COMPANY,

OF TOLEDO, OHIO, A CORPORATION OF OHIO.

Specification of Letters Patent.

Patented Feb. 1 1916.

Application filed May 21, 1915. Serial No. 29,532.

To all whom itmag concern:

Be it known that I, CLYDE S. WRIGHT, a citizen of the United States, residing at Toledo. in the county of Lucas and State of Ohio, have invented new and useful Improvements in Bull-Wheels for Drilling Apparatus, of which the following is a speci fication.

My invention relates to wheel construe tion. and more particularly, to bull-wheels for drilling apparatus. Some of its features are adapted for use in calf-wheels, brakeyvlheels, drive-wheels, windlasses, and the The object of the invention is to provide an improved wheel which can be cheaply manufactured in standard sizes and which can be shipped'in a knock-down condition and readily erected in the field, whereby the wheels can be transported not only cheaply but also safely and economically over rough roads. 1

I employ a tubular. shaft to which the friction-wheel brake-wheel, spooling arms, and other parts are secured. My invention contains improvements in the means for securing these various parts, such as the brake-wheel and the spooling arms, to the shaft. I

Other features of my invention will appear hereinafter.

Referring to the accompanying drawings, Figure 1 is a longitudinal section of a wheel embodying the principles of my invention, parts being in side elevation and broken away, the section of the wheel 4 being taken on the line I-I, Fig. 2.: Fig. 2. an end view of the shaft and the brake-wheel. the pins 15 and the bolts libeing omitted: Fig. 3. a,

section of Fig. 2' on the line TIL-III, the

shaft and the wheel-box being omitted; and' Fig. 4. a section of Fig. 1 on the ine IV--IV, parts being broken off.

On the drawings, 1 represents the shaft or coiling-drum on which the wheels and spooling arms are mounted and the drillrope or similar rope is wound. This shaft 1 is a steel or wrought iron tube or cylinder having the gudgeons 2 secured in the ends thereof.

3 represents the brake-wheel or drum comprising the rim 1, and spokes or arms a and 6. The box 7 is preferably a strip of eel plate with its ends welded or otherwise secured together to form a polygonal shape, which I designate a box. The number of sides which the box has depends on the number and arrangement of the spokes. I have shownfour spokes meeting to form angles of ninety degrees. Consequently, my box is a rectangle. This box has its interior dimensions equal to the external diameter of the shaft. The box 7 is placed on the shaft with the, latter in the opening in the former, so that the sides of the box contact tangentially with the shaft. Rivets 8 or other fastening devices are passed through the sides of the box and the adjacent wall of the shaft to rigidly connect them together.

' The spokes 5 and 6 may be composed of any suitable material, but I have found Wood to be satisfactory. They may be arranged variously but I prefer to have the two spokes 5 secured to two of the opposite sides of the box and the two spokes 6 secured to the other two of the opposite sides thereof. The middle of each spoke 1s provided with the recess 9 to receive the adjacent side of the box, the ends of the recesses forming shoulders 10 to prevent longitudinal movement of the spokes and shearing or bending strains on the bolts 11 which pass through the spokesand the sides of the box to bind the spokes and box firmly together. The spokes 5 cross the spokes 6 adjacent to the corners of the box 7 and preferably contact with each other at the crossings. The bolts 11 have their heads in the substantially triangular spaces formed by the shaft and the angles of the polygonal box. By this construction the boxes may be riveted in' place at the factory where the bullwheel parts are made, and the spokes may be secured to the boxesin the field without the necessity of makingexpensive special boxes or of passing the bolts 11 through the shaft and into the spokes,which owing to the small size of the shaft would be very difficult. The ends of the spokes support the rim 4, which is made up of wooden cants 12 formed into a number cf annular members arranged side by side and secured together by the bolts 14, the ends of the spokes extending into the rim, to which they are'secured by some of the bolts 14. One side of the rim 4 is provided with a series of pins 15 arranged in the holes 16.

These pins are for'use the wheel.

17 represents a frictionewheel secured to the end of the shaft 1 opposite the end to which the wheel 3 is secured. This. Wheel may be secured to the shaft and constructed in any practical manner. The details of this wheel form the subject-matter of my application- Serial Number 29,531, filed May 21, 1915. On the shaft lbetween the Wheels 3 and 17 I secure a second rectangular box 7 constructed like the box 7 and secured to the shaft 1 by the rivets 8' or other fastcning means the same as the means by which the. box 7 is secured to the shaft 1. To the sides of the box I secure the spokes or spooling arms 5 by means of the bolts 11 extending through the arms and the sides of the box. The .arms extend out away from the shaft 1 like the spokes or arms 5 and 6. The outer ends of the arms 5 are not connected to a rim but are left free, that is, not attached to anything. Each arm preferably has its inner end abutting against the face of one arm.

1-7 represents fillers to getting under the rim 4 large coil on the shaft.

prevent the rope when there is a to manually rotate I claim v 1. In a bull-Wheel or the like, polygonal metal box secured to the shaft, therebeing spaces bounded by the shaft and the angles of the box, arms lying on the sides of the box, and bolts securing the arms to the be each bolt-having one of its ends in one of the said spaces. I

2. In a bull-Wheel or the like, a cylindrical shaft, a polygonal box comprising a cona shaft, a

tinuous flat strip'of metal which has its sides tangent to tlie shaft and secured thereto,

whereby spaces are provided between the shaft and the angles of the box, arms lying on the sides of the box, and bolts securing the arms to the box, and having retaining means in the said spaces. 3. In a bull-wheel or the like, a tubular shaft, a polygonal box surrounding the shaft and secured to the same, a rim, and arms each having both ends connected to the rim and its central portion, provided with a recess to receive a side of the box, and means for securing the said central portion of the arms to the box. 1

. Signed at Shreeveport, La., this 10th day of May, 1915.

CLYDE S. WRIGHT.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. 0." 

